4066716321 has 16 divisors (see below), whose sum is σ = 6026428800. Its totient is φ = 2710395504.

The previous prime is 4066716301. The next prime is 4066716337. The reversal of 4066716321 is 1236176604.

It is a happy number.

It is not a de Polignac number, because 4066716321 - 2⁵ = 4066716289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4066716301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89395 + ... + 126983.

It is an arithmetic number, because the mean of its divisors is an integer number (376651800).

Almost surely, 2^4066716321 is an apocalyptic number.

It is an amenable number.

4066716321 is a deficient number, since it is larger than the sum of its proper divisors (1959712479).

4066716321 is a wasteful number, since it uses less digits than its factorization.

4066716321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41605 (or 41599 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 4066716321 is about 63770.8108855454. The cubic root of 4066716321 is about 1596.1778979436.

The spelling of 4066716321 in words is "four billion, sixty-six million, seven hundred sixteen thousand, three hundred twenty-one".